PhD Thesis Defence Presentations - Florou Kalliopi

Presentation Title (Τίτλος Παρουσίασης): Chemical characterization of fine PM and source apportionment of organic aerosol from ambient and laboratory measurements
Presentation Type (Τύπος Παρουσίασης): PhD Thesis Defence Presentations
Speakers Full Name (Ονοματεπώνυμο): Florou Kalliopi
Speakers Affiliation (Προέλευση Ομιλητή): Department of Chemical Engineering, University of Patras
Seminar Room (Αίθουσα): Seminar Hall
Event Date: Mon, Sep 24 2018, Time: 12:00 - 14:00
Abstract (Περίληψη)

Atmospheric aerosols, also known as atmospheric particles, are suspended particles (solid or liquid) in the air with diameters ranging from 1 nm to about 100 μm. Atmospheric aerosols affect the Earth's radiant budget and hence the global climate through its so-called direct and indirect radioactive effects, and also have a negative impact on human health. They can be classified as primary (emitted directly into the particle phase) or secondary (formed in the atmosphere through a series of chemical reactions). Typically, atmospheric particles consist of a mixture of inorganic and organic chemicals, including nitrates, sulfates, ammonia, organic compounds, elemental carbon, sea salt, crystalline compounds and water. The organic aerosol represents a significant fraction of the mass of atmospheric particles, but its sources and chemical composition have not yet been elucidated.

Real-time high resolution aerosol mass spectrometry was the central measurement technique used in this work. The Aerodyne High-Resolution Time-of-Flight Aerosol Mass Spectrometer (HR-ToF-AMS) can continuously measure the chemical composition and size distribution of non-refractory submicron aerosol (NR-PM1). The high-resolution mass spectra provided by the instrument every few minutes contain information about both the organic aerosol sources and processes.

This thesis presents the first HR-ToF-AMS measurements in two major Greek cities (Athens and Patras) and a remote site (Finokalia, Crete) and quantifies the contributions of the various sources to the corresponding organic aerosol levels. In addition, the formation of secondary organic aerosol during the photo-oxidation of m- and p-xylene, two important atmospheric aromatic hydrocarbons, is investigated in the laboratory using an atmospheric simulation chamber.

Speakers Short CV (Σύντομο Βιογραφικό Ομιλητή)

Education:

2014

M. Sc. in Chemical Engineering

Department of Chemical Engineering,

University of Patras, Greece

• Grade: 8.55 of 10.

• Diploma thesis: “Continuous real-time measurement of the chemical composition of atmospheric particles in Greece, using aerosol mass spectrometry”

2010

Diploma in Chemical Engineering

Department of Chemical Engineering, 

University of Patras, Greece

• Grade: 7.55 of 10. 

• Diploma thesis: “Measurement of soluble organic carbon in atmospheric suspended particles” 

2005

General Lyceum of Mandra Attikis, Greece

GPA: 19.10/20

 

Research and Work Experience:

2010-2013, 2015-6/2018: Graduate Research Assistant\ Laboratory of Air Quality Studies (LAQS) 

2013-2015: Graduate Research Assistant\ THALES project\ University of Aegean, Greece

06-07/2009: Undergraduate Research Assistant\ Hellenic Petroleum S.A.\ ELPE

 

Teaching Experience:

2011 Fall: Graduate Teaching Assistant, Dept. of Chemical Engineering, University of Patras, Greece, “Mathematics III”

2012 Spring: Graduate Teaching Assistant, Dept. of Chemical Engineering, University of Patras, Greece, “Numerical Analysis”

2013 Spring: Graduate Teaching Assistant, Dept. of Chemical Engineering, University of Patras, Greece, “Numerical Analysis”

2014 Spring: Graduate Teaching Assistant, Dept. of Chemical Engineering, University of Patras, Greece, “Laboratory of Polymers”

2015 Spring: Graduate Teaching Assistant, Dept. of Chemical Engineering, University of Patras, Greece, “Laboratory of Polymers”

 

Journal Publications:

  1. Pikridas, M., Tasoglou, A., Florou, K. and Pandis, S. N.: Characterization of the origin of fine particulate matter in a medium size urban area in the Mediterranean, Atmos. Environ., 80, 264–274, doi:10.1016/j.atmosenv.2013.07.070, 2013.
  2. Kostenidou, E., Florou, K., Kaltsonoudis, C., Tsiflikiotou, M., Vratolis, S., Eleftheriadis, K. and Pandis, S. N.: Sources and chemical characterization of organic aerosol during the summer in the eastern Mediterranean, Atmos. Chem. Phys., 15, 11355–11371, doi:10.5194/acp-15-11355-2015, 2015. 
  3. Gkatzelis, G. I., Papanastasiou, D. K., Florou, K., Kaltsonoudis, C., Louvaris, E. and Pandis, S. N.: Measurement of nonvolatile particle number size distribution, Atmos. Meas. Tech., 9, 103–114, doi:10.5194/amt-9-103-2016, 2016.
  4. Kaltsonoudis, C., Kostenidou, E., Florou, K., Psichoudaki, M. and Pandis, S. N.: Temporal variability and sources of VOCs in urban areas of the eastern Mediterranean, Atmos. Chem. Phys., 16, 14825–14842, doi:10.5194/acp-16-14825-2016, 2016.
  5. Pandis, S.N., Skyllakou, K., Florou, K., Kostenidou, E., Kaltsonoudis, C., Hasa, E. and Presto, A.A.: Urban particulate matter pollution: A tale of five cities. Faraday Discussions 2016;189:277-290, 2016.
  6. Florou, K., Papanastasiou, D. K., Pikridas, M., Kaltsonoudis, C., Louvaris, E., Gkatzelis, G. I., Patoulias, D., Mihalopoulos, N. and Pandis, S. N.: The contribution of wood burning and other pollution sources to wintertime organic aerosol levels in two Greek cities, Atmos. Chem. Phys., 17, 3145–3163, doi:10.5194/acp-17-3145-2017, 2017.
  7. Louvaris, E.E, Florou, K., Karnezi, E., Papanastasiou, D.K., Gkatzelis, G.I. and Pandis, S.N.:  Volatility of source apportioned wintertime organic aerosol in the city of Athens, Atmos. Environ., 158, 138–147, doi:10.1016/j.atmosenv.2017.03.042, 2017.
  8. Kaltsonoudis, C., Kostenidou, E., Louvaris, E., Psichoudaki, M., Tsiligiannis, E., Florou, K., Liangou, A. and Pandis, S. N.: Characterization of fresh and aged organic aerosol emissions from meat charbroiling, Atmos. Chem. Phys., 17, 7143-7155, https://doi.org/10.5194/acp-17-7143-2017, 2017.
  9. Psichoudaki, M., Nenes, A., Florou, K., Kaltsonoudis, C. and Pandis, S. N.: Hygroscopic properties of atmospheric particles emitted during wintertime biomass burning episodes in Athens, Atmos. Environ., doi:10.1016/j.atmosenv.2018.01.004, 2018.
  10. Florou, K., Liangou, A., Louvaris, E., Kaltsonoudis, C., Kostenidou, EI., Patoulias, D., Tasoglou, A., Kouvarakis, N. and Pandis, S. N.: Measurement of the ambient organic aerosol in the Eastern Mediterranean during the Finokalia Aerosol Measurement Experiment (FAME-2016), in preparation.

Conference Presentations:

  1. R. Shah, K. Florou, and Albert A. Presto: “Contrasting the Oxidation Behavior of Aerosols in Urban and Rural Locations ”, American Assoc. for Aerosol Research (AAAR) conference, 2017, Raleigh, North Carolina, USA,  (poster presentation).
  2. A. Liangou, K. Florou, M. Psichoudaki, E. Kostenidou, E. Tsiligiannis, and S. N. Pandis: “Development of a Method for the Measurement of the Water Solubility Distribution of Atmospheric Organic Aerosol ”, American Assoc. for Aerosol Research (AAAR) conference, 2017, Raleigh, North Carolina, USA,  (poster presentation).
  3. E. Kostenidou, N. Wang, K. Florou, C. Kaltsonoudis, A. Tasoglou, and S. N. Pandis: “Chemical Aging of Primary and Secondary Organic Aerosol”, International Global Atmospheric Chemistry conference (IGAC), 2016, Breckenridge, Colorado, USA. (poster presentation).
  4. A. Liangou, K. Florou, M. Psichoudaki, E. Kostenidou, E. Tsiligiannis, and S. N. Pandis: “Development of a Method for the Measurement of the Water Solubility Distribution of Atmospheric Organic Aerosol”, Workshop of Graduates and Post-Docs (WGP3), 2017, Patras, (poster presentation; awarded).  
  5. K. Florou, C. Kaltsonoudis, E. Louvaris, A. Liangou, A. Tasoglou, and S.N. Pandis: “Measurement of the ambient organic aerosol in the Eastern Mediterranean during the Finokalia Aerosol Measurement Experiment (FAME-2016)”, Workshop of Graduates and Post-Docs (WGP2), 2016, Patras, (poster presentation).  
  6. K. Florou, C. Kaltsonoudis, D.K. Papanastasiou, E. Kostenidou, and S.N. Pandis: “The contribution of wood burning and other sources to wintertime organic aerosol levels in two Greek cities”, European Aerosol Conference (EAC), 2015, Milan, (poster presentation).
  7. D.K. Papanastasiou, G.I. Gkatzelis, K. Florou, C. Kaltsonoudis, and S.N. Pandis: “Nighttime chemistry of biomass burning plumes”, European Aerosol Conference (EAC), 2015, Milan, (oral presentation).
  8. C. Kaltsonoudis, E. Kostenidou, E. Louvaris, M. Psichoudaki, E. Tsiligiannis, K. Florou, and S.N. Pandis: “Characterization of fresh and aged organic aerosol emissions from meat charbroiling”, European Aerosol Conference (EAC), 2015, Milan, (oral presentation).
  9. C. Kaltsonoudis, E. Kostenidou, E. Louvaris, M. Psichoudaki, E. Tsiligiannis, K. Florou, S.N. Pandis: “Chemical Evolution of Emissions from Meat Charbroiling”, American Assoc. for Aerosol Research (AAAR) conference, 2015, Minneapolis, (oral presentation).
  10. E. Kostenidou, C. Kaltsonoudis, K. Florou, E. Louvaris, M. Psichoudaki, S.N. Pandis: “Rethinking organic aerosol sources in Greece”, Greek Scientific Chemical Engineering Conference, 2015, Patras, (oral presentation).
  11. E. Kostenidou, K. Florou, C. Kaltsonoudis, M. Tsiflikiotou, M. Psichoudaki, E. Louvaris, S.N. Pandis: “Chemical characterization and sources of ambient aerosol and gas pollutants during summer 2012 in two urban background locations in the Eastern Mediterranean”, COMECAP conference, 2014, Heraklion, (oral presentation).
  12. E. Kostenidou, K. Florou, C. Kaltsonoudis, M. Tsiflikiotou, M. Psichoudaki, E. Louvaris, D. Papanastasiou, G. Gkatzelis, A. Bougiatioti, S. Bezantakos , N. Mihalopoulos, A. Nenes, G. Biskos , C. Pillinis , K. Eleftheriadis and S. N. Pandis: “Temporal and spatial variability of fine PM in the Eastern Mediterranean.”,  International Aerosol Conference (IAC), 2014,  Busan, Korea, (oral presentation).
  13. C. Kaltsonoudis, K. Florou, S.N. Pandis: “Pilot study of atmospheric pollution in Eleusis”, Eleusis, 2014, (oral presentation). http://www.eleusina.gr/Presentation%20Eleusina.pdf
  14. K. Florou, C. Kaltsonoudis, M. Pikridas, and S.N. Pandis: “Atmospheric Pollution during wintertime and the Greek financial crisis”, Greek Scientific Chemical Engineering Conference, 2013, Athens, (oral presentation).
  15. K.Florou, C. Kaltsonoudis, D.K. Papanastasiou, G.I. Gkatzelis, E. Louvaris, M. Pikridas, S.N. Pandis:” Wintertime Air Pollution and the Greek Financial Crisis”, American Assoc. for Aerosol Research (AAAR) conference, 2013, Portland, (oral presentation).
  16. K.K. Florou, M. Pikridas, and S. N. Pandis: “Wintertime Air Pollution and the Greek Financial Crisis”, European Geosciences Union (EGU) Meeting, 2013, Vienna, (poster presentation).

Languages:

Greek (native)

English (Examination for the Certificate of Proficiency in English (ECPE), Michigan University, C2)

French (Diplôme d'Études en Langue Française (DELF), B2)

Italian (Certificato di conoscenza della Lingua Italiana (CELI 3), Perugia, Livello 3, B2)